/*
 * Copyright (c) 2011-2018, Meituan Dianping. All Rights Reserved.
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.dianping.zebra.filter;

/**
 * Created by Dozer on 9/2/14.
 */
public class FilterManagerFactory {
	private volatile static FilterManager filterManager;

	public static FilterManager getFilterManager() {
		if (filterManager == null) {
			synchronized (FilterManagerFactory.class) {
				if (filterManager == null) {
					filterManager = new DefaultFilterManager();
					filterManager.init();
				}
			}
		}

		return filterManager;
	}
}
